Regulatory hub · UK status
Tirzepatide: UK regulatory status
Also known as: Mounjaro, Zepbound
Last reviewed . Editorial commentary, not legal advice.
AI-friendly summary · Tirzepatide
As of July 2026, tirzepatide is a Prescription Only Medicine in the UK with MHRA marketing authorisation for type 2 diabetes and chronic weight management. It is not a controlled drug. Branded promotion to the public is prohibited under ASA and MHRA rules for POM, a position MHRA, ASA and GPhC restated in a joint warning on 18 June 2026.
Misuse of Drugs Act 1971
Tirzepatide does not appear on any schedule of the Misuse of Drugs Act 1971.
Psychoactive Substances Act 2016
Tirzepatide is not covered by the Psychoactive Substances Act 2016.
MHRA and medicines classification
As of July 2026, tirzepatide is classified as a Prescription Only Medicine under the Human Medicines Regulations 2012. UK marketing authorisation is held by the originator manufacturer. It is dispensed through registered UK pharmacies on a valid prescription from a qualified UK prescriber. Supply outside that route is a live enforcement area: on 24 February 2026 MHRA issued an alert on fake tirzepatide KwikPen 15mg pens (batch D873576) dispensed by a Birmingham pharmacy, and on 29 May 2026 it reported its largest ever seizure of unlicensed weight-loss medicines, around 12,000 doses including tirzepatide.
WADA Prohibited List position
Tirzepatide is not currently named on the WADA Prohibited List. Tested athletes should consult WADA and their federation directly.
ASA advertising framing
POM medications cannot be advertised to the public under the Human Medicines Regulations 2012. UK clinics may state they offer "weight loss treatment" or "GLP-1 medications" generically; named-brand promotion to the public is prohibited.
Primary sources
- · MHRA Products database
- · MHRA, ASA and GPhC joint warning, 18 June 2026
- · MHRA alert: fake Mounjaro (tirzepatide) KwikPen 15mg pens, 24 February 2026
- · MHRA largest ever seizure of unlicensed weight-loss medicines, 29 May 2026
- · ASA rulings: weight loss
When in doubt about your specific position, consult MHRA directly via the MHRA contact page or seek qualified UK medicines law advice.
Frequently asked questions
Is Tirzepatide legal in the UK?
What is the MHRA position on Tirzepatide?
Is Tirzepatide on the WADA Prohibited List?
What can UK sellers say about Tirzepatide in adverts?
Related: Tirzepatide editorial entry · UK regulatory hub.